Quantum field theory (QFT) provides a theoretical framework for constructing quantum mechanical models of systems classically parametrized (represented) by an infinite number of dynamical degrees of freedom, that is, fields and (in a condensed matter context) many-body systems. It is the natural and quantitative language of particle physics and condensed matter physics. Most theories in modern particle physics, including the Standard Model? of elementary particles and their interactions, are formulated as relativistic quantum field theories. Quantum field theories? are used in many contexts, elementary particle physics being the most vital example, where the particle count/number going into a reaction fluctuates and changes, differing from the count/number going out, for example, and for the description of critical phenomena and quantum phase transitions, such as in the BCS theory of superconductivity, also see phase transition, quantum phase transition, critical phenomena. Quantum field theory is thought by many to be the unique and correct outcome of combining the rules of quantum mechanics with special relativity. (wikipedia)Walter Russell on Quantum Theory (published 1953)
XVII - REGARDING THE QUANTUM THEORY

"This theory claims not only that energy is within matter, but that it exists in "bundles." Its very basis has no relation to Nature anywhere, nor to the workings of polarity - the great divider - nor to the electric wave.

"One part of the theory describes certain microscopic "resonators" embedded within particles of matter to make it vibrate. These are set in motion, according to a recent article in Scientific American?, by light entering through holes which must be of just the right size in every case to cause the vibrations to release these "bundles" of energy. Nothing could be more fantastic nor more of a travesty of Nature, for the only cause of vibration is polarity.